Anna Kendrick ("A Simple Favor"); and Spike Lee ("BlacKkKlansman").
Cher ("Mamma Mia! Here We Go Again," album "Dancing Queen") is interviewed and performs; a Roman Catholic high school guidance counselor who was placed on administrative leave after school officials discovered she was married to a woman.
Michael Strahan and Sara Haines ("GMA Day"); John David Washington ("BlacKkKlansman"); a 10-year-old whose dance performance video has gone viral.
Heidi Klum ("America's Got Talent"); Olivia Munn ("The Predator"); Melissa Etheridge performs; a man hopes to start an organization that gives college scholarships to LGBT students; Charity Anderson and Andres Penate ("World of Dance") perform.
LeBron James and Channing Tatum ("Smallfoot"). Also: the dave Matthews Band perform; and Ellen welcomes 9-year-old hip-hop dancer Jaylah Brown from Los Angeles. A video of her dancing to Iggy Azalea's "Kream" went viral over the summer.
Kristen Bell ("Momsplaining" and "The Good Place"). Also: viral food critic Kalen Allen and Ellen's co-executive producer Matt Wright attend the Minnesota State Fair; and Mary Halsey of Warwick, R.I., who sings Missy Elliott's "Work It" in a viral video shot at a karaoke event.
Colin Jost and Michael Che ("70th Primetime Emmy Awards"); and Cher. Also: Ellen welcomes 7-year-old periodic table expert Finn Hathaway from Denver. He can recite all the elements in order in less than two minutes.
Cate Blanchett ("The House with a Clock in Its Walls"); and Issa Rae ("Insecure"). Also, Ellen welcomes Shelly Fitzgerald, a guidance counselor at Roncalli Catholic High School in Indianapolis who was placed on administrative leave after school officials discovered she was married to a woman. Plus, Ellen welcomes Jevh Maravilla and Christian Toledo from Pearland, Texas. Jevh and Christian hung a fake poster of themselves on a wall in their local McDonald's that went unnoticed for 51 days.
Simon Cowell ("America's Got Talent"); and Olivia Wilde ("Life Itself"). Also: Jason Mraz and Meghan Trainor perform "More Than Friends." Plus, Ellen welcomes 11-year-old ukulele prodigy Feng E from Taipei, Taiwan.
Penélope Cruz ("Loving Pablo"); Carrie Underwood is interviewed and performs; food critic Kalen Allen and co-executive producer Matt Wright attend the Minnesota State Fair; stars of a viral video of a man learning his wife is having another baby.
Kate Hudson and Goldie Hawn (Fabletics); Colton Underwood ("The Bachelor"); Death Cab for Cutie performs; a 9-year-old viral-video hip-hop dancer.
Wanda Sykes; Beth Behrs ("The Neighborhood"); and "America's Got Talent" Season 13 winner Shin Lim.
Benedict Cumberbatch ("The Grinch"); Yara Shahidi ("Smallfoot"); and magician Justin Willman. Also: the 5 Second Rule With Cher; and Ellen welcomes drummers Timothy Fletcher and Malik Perry, also known as "A1Chops."
The "Modern Family" cast.
Jennifer Hudson ("The Voice"); Max Greenfield ("The Neighborhood"); and LeBron James and Channing Tatum ("Smallfoot, Small Hoop"). Also: the Chainsmokers and Kelsea Ballerini perform "This Feeling"; and Ellen welcomes 11-year-old rapper Alaya "Lay Lay" High from Atlanta.
Lady Gaga ("A Star Is Born"). Also: Ellen welcomes Ryan Nichol, a former Marine who traveled to the Carolinas to help while Florence approached and wound up saving six hound dogs; and Ellen welcomes dancing sisters Ava and Emma Blaser.
Kobe Bryant. Also: Logic and Ryan Tedder perform "One Day"; and the Season15 "So You Think You Can Dance Top 10 perform with all-stars Lauren Froderman and Cyrus "Glitch" Spencer.
Debra Messing, Megan Mullally, Eric McCormack and Sean Hayes ("Will & Grace"); Bob Moses performs.
Lady Gaga ("A Star Is Born"); Justin Hartley ("This Is Us").
Jamie Dornan ("My Dinner With Hervé"); Busy Philipps (book "This Will Only Hurt a Little").
Savannah Guthrie ("Today"); LeBron James and Channing Tatum ("Smallfoot"); polo player Nacho Figueras; Jungle performs.
Jennifer Garner ("Camping"); Kacey Musgraves is interviewed and performs; 10- and 16-year-old dancing sisters; a viral-video, piano-playing pizza delivery guy.
Jenna Fischer ("Splitting Up Together"); TV personality Simon Cowell; Nicole Maines ("Supergirl"); Hozier and Mavis Staples perform.
Dakota Johnson ("Suspiria," "Bad Times at the El Royale"); Ken Jeong ("Goosebumps 2: Haunted Halloween").
Ryan Gosling ("First Man"); Lenny Kravitz performs; Ellen plays "Fortnight" with professional eSports player Tyler "Ninja" Blevins; a U.S. Marine who, returning home after being deployed for six months, met his son for the first time.
Actor Kunal Nayyar; author Ellie Kemper; the Wild Boars soccer team from Chiang Rai, Thailand.
Actress Keira Knightley; actress Kathryn Hahn; Old Dominion performs.
Maya Rudolph ("Forever"); Bazzi performs; a high school dance team and their assistant principal perform.
Comic Chelsea Handler; "Ellen's Burning Questions," with Simon Cowell; lifestyle expert Kym Douglas
Jonah Hill ("Mid90s"); Whitney Cummings (audiobook "I'm Fine... and Other Lies").
Sarah Silverman ("I Love You, America," "Ralph Breaks the Internet"); Ellen and Jon Dorenbos surprise an autistic man, who is an ambassador for the Philadelphia Eagles Autism Challenge.
Ellen Pompeo ("Grey's Anatomy"); Demetri Martin ("Demetri Martin: The Overthinker") performs stand-up comedy; the soccer team that was trapped in a cave for 18 days practices with the L.A. Galaxy; a 10-year-old who wants to be an umpire.
Jason Sudeikis ("Jason Sudeikis & Friends Present The 2nd Annual `Thundergong: A Benefit Concert for Steps of Faith Foundation' "); Lauren Daigle performs.
Rapper Sean "Diddy" Combs; Chrissy Teigen and Andy Lassner brave a haunted house; members of the W.A.F.F.L.E. dance crew perform.
Kris Jenner ("Keeping Up With the Kardashians"); Ciara performs.
David Spade (audiobook "A Polaroid Guy in a Snapchat World"); singer Marcelito Pomoy.
Nicole Kidman and Lucas Hedges ("Boy Erased"); Troye Sivan is interviewed and performs; a woman who is credited for stopping a potential mass school shooting after insisting police investigate a racially motivated Facebook message she received.
Halloween show; Rebel Wilson ("Isn't It Romantic"); Chrissy Teigen, her mother Vilailuck Teigen and Ellen's executive producer Andy Lassner go through a haunted house.
Rami Malek ("Bohemian Rhapsody"); a 6-year-old geography expert.
Sean Hayes (children's book "Plum"); Fatima Ali ("Top Chef") discusses her Ewing's sarcoma; an 8-year-old pop-and-lock dancer.
Blake Shelton ("The Voice"); Joel Edgerton ("Boy Erased"); a 6-year-old and her father perform a song.
Eddie Redmayne ("Fantastic Beasts: The Crimes of Grindelwald"); Damon Wayans Jr. ("Happy Together"); an 8-year-old presidential expert; a man who made a viral video of himself dancing to a Michael Jackson song.
Octavia Spencer ("Instant Family"); Average Andy meets the Los Angeles Rams Cheerleaders.
Leah Remini ("Second Act"); drummers Timothy Fletcher and Malik Perry perform.
Judy Sheindlin ("Judge Judy"); Pharrell Williams ("The Grinch"); a 9-year-old girl who has survived brain cancer, hydrocephalus, cardiac arrest and a coma.
Mandy Moore ("This Is Us"); Travis Scott is interviewed and performs; Ellen has a big surprise for a single mother who runs a self-funded program for at-risk youth.
Mark Wahlberg ("Instant Family"); a young viral-video star and her adoptive parents
Connie Britton ("Dirty John"); a 9-year-old rapper tests some of the hottest toys of the year and performs; a Powerball winner tells how she plans to use the money.
Adam Levine ("The Voice"); Average Andy competes on game show "The Titan Games," with host Dwayne Johnson; a 6-year-old periodic table expert.
Emily Blunt ("Mary Poppins Returns"); Backstreet Boys chat and perform; Ellen surprises a young man who is providing for his siblings' education and cannot afford his own college tuition.
Emily Blunt ("Mary Poppins Returns"); Backstreet Boys chat and perform; Ellen surprises a young man who is providing for his siblings' education and cannot afford his own college tuition.
Howie Mandel ("Deal or No Deal"); Ashley Graham (ellentube digital series "Fearless"); a 6-year-old dancer chats and performs; lifestyle expert Kym Douglas.
Lin-Manuel Miranda ("Mary Poppins Returns"); an 11-year-old viral star is interviewed and performs; magician and former NFL player Jon Dorenbos; GEICO Skybox winners who made an original song and dance.
John Krasinski ("A Quiet Place," "Tom Clancy's "Jack Ryan"); rapper Meek Mill discusses fighting for criminal justice reform.
Jennifer Lopez ("Second Act") is interviewed and performs; Ellen welcomes a GEICO Skybox-winning family.
Julia Roberts ("Ben Is Back"); Alessia Cara performs.
John Cena ("Bumblebee"); a crafting demo with Martha Stewart; Julia Garner ("Dirty John").
Ryan Reynolds (PG-13 version of "Deadpool 2"); Gwen Stefani is interviewed and performs.
Natalie Portman ("Vox Lux"); a cooking demo with Padma Lakshmi ("Top Chef"); Jeff Garlin; Halsey performs.
Jennifer Aniston ("Dumplin"'); Dolly Parton is interviewed and performs.
Margot Robbie ("Mary Queen of Scots"); Sinbad ("Rel").
Steve Harvey ("Little Big Shots: Little Big Holiday Special"); Olivia Munn helps Ellen with her 12 Days of Giveaways; Ellen reunites childhood friends 12 years after they last saw one another.
Amy Adams ("Vice"); Eugene Levy and Catherine O'Hara ("Schitt's Creek"); Marshmello and Bastille perform; guest co-host Ashton Kutcher ("The Ranch").
Steve Carell ("Welcome to Marwen"); Gisele Bündchen (book "Lessons: My Path to a Meaningful Life"); Kesha performs.
Sam Rockwell ("Vice"); Richard Madden ("Bodyguard"); John Cena talks to teens about what they want to do with their lives; Ellen welcomes the couple who lost their engagement ring in a Times Square sidewalk grate; Dave Matthews Band performs.
Minnie Driver ("Speechless"); science guy Steve Spangler; Brett Young performs; guest host Ellie Kemper ("Unbreakable Kimmy Schmidt").
Sandra Bullock ("Bird Box"); Blake Shelton performs.
Heidi Klum ("America's Got Talent: The Champions"); actor Burt Ward's line of dog food.
Podcaster Dax Shepard; special education teacher and cheerleading coach Jenna Albi.
Kevin Hart (exclusive interview)
Jesse Tyler Ferguson ("Modern Family"); viral star Kalen Allen; Ellen welcomes a college football player who is gay.
Mahershala Ali ("True Detective," "Green Book"); Saoirse Ronan ("Mary Queen of Scots").
Liev Schreiber ("Ray Donovan").
Claire Foy ("First Man"); a 7-year-old boy who rescues dogs.
Timothée Chalamet ("Beautiful Boy"); Sarah Hyland ("Modern Family").
Robin Roberts ("Good Morning America"); two 6-year-old geography experts.
Lily Tomlin and Jane Fonda ("Grace and Frankie"); cooking demo with Giada De Laurentiis ("Winner Cake All").
Allison Janney ("Mom"); Maggie Rogers performs.
Cooking demo with Gwyneth Paltrow ("The Clean Plate"); guest hosts Kate Hudson and Goldie Hawn.
Seth Rogen and Charlize Theron ("Long Shot"); Ellen Page ("The Umbrella Academy"); "Ellen's Burning Questions" with P!nk; a 9-year-old rapper chats and performs.
Diane Keaton; chef Wolfgang Puck; John Legend ("The Voice") chats and performs.
Portia de Rossi talks about The Ellen Fund and breaking ground on The Ellen DeGeneres Campus of The Dian Fossey Fund in Rwanda; Olivia Munn discusses The Shelter Pet Project; magician Shin Lim ("America's Got Talent: The Champions").
Milo Ventimiglia ("This Is Us"); a 4-year-old drumming prodigy; Florida Georgia Line performs.
Milo Ventimiglia ("This Is Us"); a 4-year-old drumming prodigy; Florida Georgia Line performs.
Wanda Sykes; Robyn performs.
Kristen Bell and Dax Shepard discuss their baby line, Hello Bello; an 11-year-old ukulele prodigy chats and performs.
Idris Elba ("Turn Up Charlie"); young piano prodigy Lydian Nadhaswaram ("The World's Best").
Patricia Arquette ("The Act"); Ellen and tWitch guess the surprise celebrity cameo during "The Masked Dancer" segment; Sharon Van Etten performs.
The winner of "The Masked Singer"; West Side High School principal Akbar Cook updates Ellen on his school since his last appearance; John Mayer chats and performs.
Beth Behrs ("The Neighborhood"); former NFL player Jon Dorenbos performs magic.
Colin Farrell ("Dumbo"); Sophia Lillis ("Nancy Drew and the Hidden Staircase").
Lupita Nyong'o ("Us"); a cameo appearance by Tig Notaro and Jason Sudeikis; Ellen surprises a pair of best friends, including the mother of a girl with Down syndrome; Chaka Khan performs.
Ben Affleck ("Triple Frontier"); author Tara Westover ("Educated").
Max Greenfield ("The Neighborhood"); David Gray performs; "World of Dance" contestants The Crazy 8s perform; guest host Jason Sudeikis.
Rob Lowe ("Mental Samurai"); Tig Notaro ("Instant Family"); Jason Sudeikis and Olivia Wilde; Hannah Brown ("The Bachelorette"); a man who went viral for dancing to a Post Malone song performs with backup dancers.
Ed O'Neill ("Modern Family"); Billie Eilish chats and performs; singing police officers talk about connecting with the youth in their community through their singing and their nonprofit program, C.O.P.S.S.
Actor Woody Harrelson ("The Highwaymen"); actress Joey King ("The Act"); Brothers Osborne perform
Josh Gad ("A Dog's Journey"); Erika Jayne ("The Real Housewives of Beverly Hills"); Ava Max performs; guest DJ Colton Underwood ("The Bachelor"); guest host Mila Kunis.
Bill Hader ("Barry"); Ellen welcomes a pair that travels across the country to help get shelter dogs adopted.
Trevor Noah (podcast "On Second Thought"); James Bay and Julia Michaels perform.
Dax Shepard ("Bless This Mess"); Brit Marling and Ian Alexander ("The OA").
Lily Tomlin ("Still Laugh-In: The Stars Celebrate"); Rob Delaney and Sharon Horgan ("Catastrophe"); rapper Lil Dicky; Teyana Taylor performs.
Leslie Mann; Jenna Dewan (book "Gracefully You: How to Live Your Best Life Every Day"); a 7-year-old teaches about the human body; Melissa Etheridge performs; guest host John Cena.
P!nk chats and performs; O'Shea Jackson Jr. ("Long Shot").
Scarlett Johansson and Brie Larson ("Avengers: Endgame"); Toro y Moi performs.
People magazine's 2019 "Most Beautiful" issue cover star; LSD performs.
Bradley Cooper ("Avengers: Endgame").
Adam Sandler ("Murder Mystery").
Kourtney Kardashian (website Poosh); Anderson.Paak performs; Ellen welcomes a viral-video family.
Zac Efron ("Extremely Wicked, Shockingly Evil, and Vile"); Ellen surprises a woman who bought a "BE KIND. by ellen" subscription box with a chance to win big.
Blake Shelton ("UglyDolls," "The Voice"); viral-video star pianist Marcos Bocanegra performs.
Diane Keaton ("Poms"); John Bradley ("Game of Thrones"); Ellen sends executive producer Andy Lassner and his biggest fan to cover the red carpet at the 2019 Billboard Music Awards in Las Vegas.
Kenan Thompson ("Saturday Night Live"); a college wrestler discusses his disability and adoption; a 10-year-old viral-video violinist performs.
Reese Witherspoon ("Big Little Lies"); the Daniels family (ellentube's "Do Good Daniels").
Will Smith, Mena Massoud and Naomi Scott ("Aladdin"); 10 members of the W.A.F.F.L.E. dance crew chat and perform.
Tom Hanks ("Toy Story 4"); a 6-year-old astronomy enthusiast.
Kunal Nayyar ("The Big Bang Theory"); wildlife expert David Mizejewski; Poppin John ("World of Dance"); a viral-video family returns to perform again; YG featuring Tyga performs; guest host Stephen "tWitch" Boss; guest DJ Loni Love.
Snoop Dogg; Twitter live shot at Minute Maid Park with Houston Astros pitcher Justin Verlander; James Blake performs.
Special guest host tWitch with guests Taye Diggs, Loni Love, Jeannie Mai, Adrienne Houghton, Amanda Seales and Brockhampton.